.main {
  @include index_main;
  .nav {
    @include index_nav;
    .nav-btn {
      display: inline-block;
      height: 30px;
      line-height: 30px;
      margin: 15px 0 0 20px;
      color: #444;
      padding: 0 10px;
      background: rgba(133,144,166,.12);
      border-radius: 20px;
      cursor: pointer;
      &.nav_active, &:hover {
        color: #0084ff;
        background: aliceblue;
      }
      i {
        font-size: 18px;
        padding: 0 5px;
      }
    }
  }
}
.Fixed {
  position: fixed;
  width: 694px;
  z-index: 10;
}
.fix {
  background: #f6f6f6;
  left: -3px;
  height: 78px;
  position: absolute;
  bottom: 0;
  width: 700px;
  z-index: -1;
}